Characterization of a new cytotype and ocurrence of a B microchromosome in two spot astyanax, Astyanax bimaculatus Linnaeus, 1758 (Characiformes: Characidae).
J Fish Biol
; 102(2): 520-524, 2023 Feb.
Article
en En
| MEDLINE
| ID: mdl-36321966
ABSTRACT
Although Astyanax bimaculatus is the most representative species of the genus in the Amazon region, there are no cytogenetic studies of A. bimaculatus species in Amazon region. Thus, we aimed to analyse the chromosome complements of specimens from this area using classic and molecular cytogenetic approaches. The results revealed the existence of a distinct cytotype and this is the first report of the occurrence of a B microchromosome in the species. Overall, these data indicate that the karyotypic evolution of this species is complex, involving the occurrence of chromosomal rearrangements.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Characiformes
/
Characidae
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
J Fish Biol
Año:
2023
Tipo del documento:
Article